Lanes 2, 3 and 4 have now re-opened past the scene. Lane 1 remains closed, please allow extra time for your journey. Post navigation @lucy_inthesky1 @lucy_inthesky1 Hi Lucy, yes into London from M25/M4 interchange is fine. The scene is now clear and the road has re-opened following the earlier collision. Thank you for your patience. Please have a safe onward journey.